Robbie Williams is set to reunite with Take That at London's Royal Albert Hall tomorrow night.

The pop group will appear as a five-piece for the Children In Need show, while Sir Paul McCartney is expected to join them for a song or two.

Take That singer Gary Barlow is the mastermind of the charity show and is said to be pulling out the stops to make it memorable.

A source told The Sun: “The reunion is go. Robbie is utterly thrilled about it. He's been dreaming of performing with Take That again for years and now it's going to happen.

"Gary has spent months organising the event and is determined that it will be memorable. He's looking forward to singing with Rob again, but landing Paul McCartney is without doubt his biggest coup.

"They haven't decided what they are going to sing together, but something will take shape in rehearsals today."

Also performing at the Children In Need concert are Muse, Lily Allen, Leona Lewis, Dizzee Rascal, Snow Patrol and Dame Shirley Bassey.

As well as performing with Take That, Sir Paul will also play a set.

(by Scott Colothan)